Which of the following best describes oxidation?

What is the oxidation number of oxygen in hydrogen peroxide (H₂O₂)?

In the reaction Zn(s) + Cu²⁺(aq) → Zn²⁺(aq) + Cu(s), which species is reduced?

Which of these is NOT a common oxidizing agent?

What is the role of a salt bridge in a voltaic cell?

Which of the following metals is most easily oxidized?

What is the standard reduction potential (E°) of the standard hydrogen electrode (SHE)?

Which process occurs at the anode of an electrochemical cell?

In the context of redox reactions, what does disproportionation mean?

What is the purpose of balancing redox reactions?